Introduction to NAD+
NAD+ is an acronym for nicotinamide adenine dinucleotide (quite a mouthful). It is a cofactor in the body, used by multiple enzymes and processes, including energy production and DNA repair.
The amount of NAD+ in cells has been shown to decline with age in multiple organisms. Its involvement in DNA repair is particularly interesting, because DNA damage accumulates with age, and it appears that lower NAD+ in advanced age may not be enough to enable necessary DNA repair.
Fortunately, cellular NAD+ levels can be increased by simple oral supplementation with its precursors, though restoring NAD+ to youthful levels may require very large doses, or a different route of administration, such as intravenous.
I'm currently (May 2018) supplementing with 100 mg of an NAD+ precursor, nicotinamide riboside from Life Extension, twice per day.
Is anyone else supplementing with NAD+? Have you noticed any effects? I haven't noticed anything myself, but I'm relatively young (35), and plan to keep supplementing with it, while assuming it's likely doing me some good (and probably no harm).
I'm also interested in hearing the experiences of anyone who has tried intravenous NAD+, or is part of an NAD+ study. Some people have reported lower blood pressure, better sleep, and increased mental acuity.
Well that's interesting ... I've been taking 200mg NAD+ (from lifeextension.com) for about a week, after about three days I noticed a significant change in my sleep. Now I'm very aware of my sleep patterns, for work I used to do a lot of worldwide travel which really messed up my clock, ever since I've had to work hard to get a good night sleep (e.g. I keep to a schedule religiously, prepare the few hours before by getting off screens and work, all the lights in the house go reddish, etc). Anyhow I've not been a significant dreamer, though it was better when younger. Now I'm dreaming deeply (indicating REM sleep), get back to sleep easily when I wake and overall am extremely rested during the day.
This is anecdotal of course, normally I'd attempt some kind of rigor at least by going on/off periodically to check, but the results are so noticeable I have no doubt it's a real effect. If for nothing else that's worth the price of admission (about 90 cents/day), now to talk to my local drip clinic about getting an IV.
Otherwise I'm not noticing any effect on energy levels, other than they are somewhat lower. I think this is due to getting better rest (not jittery from not getting quite enough sleep at night).Reply
I have been following NR, NMN which lead to NAD.
I have been following here on this site.
There are several people taking NR and NMN.
It seems that people are taking NMN taking sublingual are having the best results.
Most of then are getting NMN from here https://alivebynature.com/product-category/nmn/
Maybe someone can ask Lifeextension to add NMN to their products.
I am taking NR directly from Chromadex and I have my best results taking it in the morning on an empty stomach. I may switch over to NMN though.Reply
Too many posts to read, so I don't know what 'having the best results' means. Unless you measure it that's meaningless, in this case it would be various markers for aging. I think DNA methylation is one of the main ones they use. I did see this post in there (which doesn't mean much but hey)
NMN is definitely not converted to NR in the intestines. It is mostly absorbed intact. It gets converted to NR outside cells. But the conversion rate is very small. So a majority of NMN is washed out in the urine. To get the same NAD+ increase as from 250mg NR, you will need 5,000mg NMN. The clinical results from NR is so much better than NAM means that NR is not cleaved either in the intestines.
Personally this is all early stage, I don't think it's useful for us to play armchair researcher and try to figure out the optimal approach. Also there are issues of availability, cost and ease of consumption. So for me I trust LifeExtension as having done their homework and get it from there (NR - Nicotinamine Riboside) at their recommended dose.Reply